projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 2d21ac55 A |
1 | /* |
| 2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the License | |
| 10 | * may not be used to create, or enable the creation or redistribution of, | |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any | |
| 13 | * terms of an Apple operating system software license agreement. | |
| 14 | * | |
| 15 | * Please obtain a copy of the License at | |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 17 | * | |
| 18 | * The Original Code and all software distributed under the License are | |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 23 | * Please see the License for the specific language governing rights and | |
| 24 | * limitations under the License. | |
| 25 | * | |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
| 27 | */ | |
| 28 | /* | |
| 29 | * Copyright (c) 1990, 1996-1998 Apple Computer, Inc. | |
| 30 | * All Rights Reserved. | |
| 31 | */ | |
| 32 | /* | |
| 33 | * posix_shm.c : Support for POSIX shared memory APIs | |
| 34 | * | |
| 35 | * File: posix_shm.c | |
| 36 | * Author: Ananthakrishna Ramesh | |
| 37 | * | |
| 38 | * HISTORY | |
| 39 | * 2-Sep-1999 A.Ramesh | |
| 40 | * Created for MacOSX | |
| 41 | * | |
| 42 | */ | |
| 43 | ||
| 44 | #ifndef _SYS_POSIX_SHM_H_ | |
| 45 | #define _SYS_POSIX_SHM_H_ | |
| 46 | ||
| 47 | #include <sys/appleapiopts.h> | |
| 48 | #include <sys/types.h> | |
| 49 | #include <sys/proc.h> | |
| 50 | ||
| 51 | struct label; | |
| 52 | ||
| 53 | #define PSHMNAMLEN 31 /* maximum name segment length we bother with */ | |
| 54 | ||
| 55 | struct pshminfo { | |
| 56 | unsigned int pshm_flags; | |
| 57 | unsigned int pshm_usecount; | |
| 58 | off_t pshm_length; | |
| 59 | mode_t pshm_mode; | |
| 60 | uid_t pshm_uid; | |
| 61 | gid_t pshm_gid; | |
| 62 | char pshm_name[PSHMNAMLEN + 1]; /* segment name */ | |
| 63 | void * pshm_memobject; | |
| 64 | #if DIAGNOSTIC | |
| 65 | unsigned int pshm_readcount; | |
| 66 | unsigned int pshm_writecount; | |
| 67 | struct proc * pshm_proc; | |
| 68 | #endif /* DIAGNOSTIC */ | |
| 69 | struct label * pshm_label; | |
| 70 | }; | |
| 71 | #define PSHMINFO_NULL (struct pshminfo *)0 | |
| 72 | ||
| 73 | #define PSHM_NONE 1 | |
| 74 | #define PSHM_DEFINED 2 | |
| 75 | #define PSHM_ALLOCATED 4 | |
| 76 | #define PSHM_MAPPED 8 | |
| 77 | #define PSHM_INUSE 0x10 | |
| 78 | #define PSHM_REMOVED 0x20 | |
| 79 | #define PSHM_INCREATE 0x40 | |
| 80 | #define PSHM_INDELETE 0x80 | |
| 81 | ||
| 82 | #endif |